Bloom has appeared in a number of plays and theatrical works in both London and New York. Those works include Look Back in Anger,Rashomon, and Bloom's favorite role, that of Blanche in the Tennessee Williams play A Streetcar Named Desire. Bloom has also performed in a one woman show that included monologues from several of her stage performances. She also starred in 1976 Broadway revival of The Innocents.

In 2008, she guest starred in New Tricks as actress Helen Brownlow. The story was about the murder of her husband whilst they were in a play together.

In December 2009, she appeared in Doctor Who alongside David Tennant in his final storyas the Tenth Doctor, as a Time Lord credited only as "The Woman." Series executive producer Russell T Davies revealed in his 2010 book The Writer's Tale that the character is supposed to be the Doctor's mother.

In 2010, she guest starred as Jill Peters in The Bill in the episode "Taking a Stand".

Gallifrey may be found on CharonNASA have released plans for the naming of areas of Pluto's moon Charon, based upon the International Astronomical Union's recommendations that these would relate to "destinations and milestones of fictional space and other exploration; fictional and mythological vessels of space and other exploration; fictional and mythological voyagers, travellers and explorers."30 JulPeter Capaldi In Conversation (The Civic, Auckland, November 2015)There are still tickets available to see Peter Capaldi live in conversation at The Civic, Auckland, New Zealand, taking place on the 24th November 2015.30 Jul3D Cinema Event for the USDoctor Who fans in the United States will get a chance to relive the climax of series 8 with a special 3D screening, in selected movie theatres, of last year's two part finale, Dark Water / Death in Heaven. 29 JulDoctor Who Comic PreviewsThis Wednesday sees the release of three Doctor Who comics, featuring the Ninth, Tenth and Twelfth Doctors. 29 Jul